Buzz!
The sound of a sword clashing suddenly rang out, and Bai Yu's katana was instantly drawn from its sheath.
An indescribable sense of terror swept outwards like a hurricane.
Everyone in this world only caught a fleeting glimpse of a white streak of light flashing across the sky.
Once everything returned to normal, Bai Yu Bai Yu was nowhere to be seen where he had been standing. When he reappeared, he had already crossed Acnologia and was a hundred meters away.
The bizarre scene startled everyone at first.
Unfortunately, before they could react...
Bai Yu traversed the earth in an instant, and even on Acnologia's body, a shocking slash mark appeared, causing the ground to crumble.
The earth tore open in response, and the tear quickly spread across Acnologia.
Amidst the splattering blood, a deep wound revealing bone was clearly visible.
What's even more shocking is that this horrifying slash mark didn't stop there.
And right before everyone's eyes, it spread to the sea surface as far as the eye could see.
The sound of explosions echoed as the seabed rock shattered.
A shocking slash across the vacuum zone, spanning the entire ocean.
Everyone who witnessed this scene felt a chill run down their spines, and their scalps tingled with fear.
Faced with an attack that was so powerful it was invisible to the naked eye.
Each person felt as if an invisible blade was held to their neck, and they wouldn't even realize they were being slashed.
In particular, seeing the mighty Black Dragon King Acnologia fall from mythology to the mortal realm in a single encounter was truly astonishing.
His entire body was stained red with blood.
If you hadn't seen it with your own eyes, probably not many people would believe it was real.
"Aren't you going to run away?"
Bai Yu was enveloped in endless golden light, radiating pure divinity. He slowly turned around and coldly looked at the Black Dragon King Acnologia.
That one glance instantly jolted the Black Dragon King Acnologia awake.
The moment their eyes met, a chill swept through their souls.
Without a second thought, the Black Dragon King Acnologia let out a deafening the Roar, flapped its wings, and quickly took off into the sky.
At this moment, he felt a sense of death crisis that he had forgotten for hundreds of years.
Everyone's pupils contracted sharply at the sight.
They never expected that the legendary Black Dragon King Acnologia would actually flee in full view of everyone.
Looking at the Black Dragon King Acnologia had already appeared thousands of meters away.
All eyes turned to Bai Yu, and a strange sense of urgency appeared on their faces.
They were eager to know whether Bai Yu would let go of the Black Dragon King Acnologia, this easily obtained victory.
However, the idea had only just begun to take shape in their minds.
Bai Yu calmly raised his head and looked at the Black Dragon King Acnologia, uttering two simple words.
"Sword, come!"
Buzz!
The air flowing between heaven and earth seemed to pause for a moment.
Endless golden light illuminated the entire world.
The next moment, Bai Yu made a grabbing motion in the air with his right hand.
The golden light from the sky converged directly into thousands upon thousands of golden blades.
Its vast and mighty form, like a long river of sword blades, was a sight to behold.
Faced with this formation that occupied half the sky, the faces of those present turned pale, and their bodies trembled slightly.
Facing the overwhelming force in the sky, in their eyes...
Is this something that can be helped by human effort?
Perhaps only a god could do that.
Black Dragon King Acnologia who had fled to a distant place, also underwent a sudden and drastic change in expression.
Originally, it didn't take the so-called Dragon-Slaying Mage seriously at all.
However, if there were a way to undo mistakes in this world, he would definitely not choose to come here and suffer setbacks.
Faced with this overwhelming array of golden sword blades, the Black Dragon King Acnologia lost his composure for the first time.
His only thought was to frantically unleash the magic power within his body, attempting to escape this world.
However, Bai Yu seemed completely unconcerned by all of this, simply raising his hand slowly and then suddenly grabbing at something in mid-air.
"Ultimate Divine Swordsmanship: Myriad Swords Return to the Origin!"
Boom!
A shower of golden sword blades, like Meteor Rainstorm, shot rapidly toward the Black Dragon King Acnologia in the distance as Bai Yu clenched his fists tightly.
The speed was so fast that what appeared to everyone was like a sky full of golden meteors illuminating the entire world.
In an instant, they all converged at a single point.
A deafening explosion followed.
The world was completely enveloped in dazzling golden light.
All that could be heard by everyone in this world was the rolling thunder.
The heavens and earth seemed to be turned upside down, violently shaking and trembling.
When the world returned to normal and everyone came to their senses, they had no idea how much time had passed.
Black Dragon King Acnologia who had fled to the edge of sight, had long since disappeared from view.
Only Bai Yu remained, standing quietly in place, watching everything unfold before him.
That terrifying aura that once chilled the heart has long since vanished.
However, faced with that devastating attack, they knew that it could easily destroy everything, let alone a Tenrou Island, or even a kingdom's capital.
Thinking of this, Hades and the others couldn't even muster the thought of running away.
After all, in their eyes, even the legendary Black Dragon King Acnologia couldn't escape from Bai Yu's sight, let alone them.
If they had a choice, they would absolutely not want to come to this place to watch a play.
"Ding-dong, congratulations host, you have defeated the Black Dragon King Acnologia and completed the Nightmare-level dungeon. The system will return to the Sea King World in five minutes."
"Ding-dong, congratulations host, you have obtained God-Level Blind Box."
System notifications rang out one after another.
Bai Yu raised an eyebrow, his heart, which had been hanging in suspense, secretly relaxed.
Originally, when defeating the Grimoire Heart, Bai Yu was worried that the Nightmare-level dungeon would be difficult to complete.
Looking back now, I realize I was overthinking it.
Thinking back, last time I stayed in this world, I only stayed for a day and a night, and seven days passed in the Sea King World.
Bai Yu has now been staying in the Fairy Tail World for seven or eight days.
How many days have passed in the Sea King World, and how have things turned out?
Bai Yu absolutely dared not imagine it. The only thing he could do was to defeat the Black Dragon King Acnologia as soon as possible, complete the Nightmare Dungeon, and return to the Sea King World.
This is the true path to victory.
" Bai Yu, are you leaving?"
The Tatsumaki slowly descended from the sky, its attack, as unexpected as Bai Yu's, had just been unleashed.
However, Tatsumaki quickly came to terms with it.
Without such methods, how could he have become her fiancé?